You can load an image, and make waypoints. Zoom and save to svg or pdf. (I don't know if it's a bug on my system, but it won't save a loaded svg map as svg (the waypoints show up but the svg map is all black), but will save to pdf just fine. Add an image of your choice and uncomment the section for loading it. I just start with a rectangle for this demo. For best results with an image, use a huge image and scale the canvas down after loading it, so the resolution stays good when zooming. I have 1, but it's 3 megs, so I won't base64encode it into the script. :-)